Storage-battery cell



J. C ElCHHOHN.

STORAGE BATTERY CELL. I

APPLICATION FILED JUNE 3. I918- Patented May 11, 1920.

JACOB C. EICI-IHORN, 0F DETROIT, MICHIGAN.

STORAGE-BATTERY CELL.

Specification of Letters Patent.

Patented May 11, 1920.

Application filed June 3, 1918, Serial No. 238,028;

To all whom it may concern:

Be it known that I, JACOB C. EICHHORN, a citizen of the United States ofAmerica, residing at Detroit, in the county of Wayne and State ofMichigan, have invented certain new and useful Improvements inStorage-Battery Cells, of which the following is a specification,reference being had therein to the accompanying drawings.

In the construction of cells or jars for storage batteries, it has beenhitherto the custom, so far as known to me, to seal the top with wax orlike material, owing to the diliiculty experienced in securing a coverof suitable form upon the top in such manner as to provide forventilation and at the same time give ready access to the jar.

This invention relates to a battery jar and to means for closing orsealing the same which obviates the necessity of the use of wax or otherlike material, which perfectly vents the jar and maintains the vent inopen condition at all times, while it gives access to the jar interiorwithout the necessity of removing any cementitious material.

The invention consists in the matters hereinafter set forth, and moreparticularly pointed out in the appended claims.

In the drawings,

Figure 1 is a view in side elevation, partially broken away and insection, of a battery jar that embodies features of the inven tion;

Fig. 2 is a plan view of the jar with the terminals removed;

Fig. 3 is a plan View of the bottom of the jar cover;

Fig. 4 is a view in central cross sectio through the jar cover; and

Fig. 5 is a detail view of one means of clamping the lid in place.

As herein shown, a battery jar 1 of the usual rectangular form anddimensions desired, is provided around its margin with an outstandingflange 2, the jar being preferably of glass or like vitreous material. Acover of glass is disposed thereon. This has a depending internal flange3 extending completely around it, proportioned to be just within theupright wall of the jar and to act, in fact as .a centering membertherefor. An upwardly extending marginal clamping rib 4, the top ofwhich may be rounded, likewise encircles the lid, the margin of which.conforms exteriorly with the outer edge portion of the flange 2. The

I cover isapertured at15 f0r the insertion of the usual terminals. Thebody of the cover within the flange is crowned or cambered outwardly asindicated at 5 so that it slopes gradually upward toward a centrallydisposed, oval, depending baflie 6. Within the baille, there is aslightly depressed portion 7 through which a vent opening 8 is formed.

A gasket 9 of suitable material is interposed between the jar and thelid and the whole is securely clamped together by clips 10 which may beof any preferred type, but, as herein shown, each consists of a body 11with a pair of inturned lugs 12 bearing upwardly against the undersideof the flange 2 and a pair of hook ears 13 bent to snap over theclamping rib 4 and yieldingly force the parts together. For ease ofremoval, the end portions 14 of the bodyof the clip are outturned.

The jar that is thus obtained, is hermetically sealed in such a manneras to be readily accessible, and perfectly ventilated. In case of anysplashing, the baffle of the crowned middle portion deflects .the liquidand prevents it entering the vent opening while at the same time ifthere is any direct splashing upward into the opening, the outer face ofthe cover permits the liquid to drain back into the jar. Because of theyielding clamps, the gasket is kept compressed and the joint between thejar and the lid is at all times hermetically sealed. The jar is readilyopened by snapping off the clips and lifting the cover, when access ishad to the interior without the necessity of removing the wax or otherlike sealing material usually used.

hat I claim is 1. In battery cell constructions and in combination, a arbody having an open top, a cover therefor having its middle portioncrowned upwardly, said crowned portion having a depression on its upperface and a depending rib on its lower face surrounding the depressedportion, said depressed portion having a vent opening, and means forsecuring the cover in position, the location of said means preventingits interference with the free operation of the vent opening.

2. In battery cell constructions, and in combination, a jar body havingan open top,

said open top extending generally in two dimensions differing as tolength, a cover therefor having a depending centering rib conforming tothe general ,dimensions of such open top and'having its middle portioncrowned upwardly in general correspondence with the different lengthdimensions, said crowned portion having a depression on its upper faceand a depending rib on its lower face surrounding the depending portion,said depressedportion being elongated in the directionof length of thegreatest dimension and having a vent opening, and

10 means for securing the cover in position, the

location of said means preventing-its interference with the freeoperation of the vent opening.

In testimony whereof I a'HiX my signature in-the presence of twowitnesses.

JACOB O. EICHHORN.

WVitnesses a ANNA- M. Donn, KARL H.'BUTLER.

